Foreign trade Sales Clerk Exams-Air
Filters
Name: Points:
B. Air filter products fill in the blank in English,
2 points each space.
1) Air Filters
overall divided into: ( ) ( ) ( ) ( )
2) Please list
efficiency of below air filter:
Primary Air Filter：
Secondary Air
filter：
HEPA air filter：
ULPA air filter：
3) Cited three
different styles of HEPA filter ) ( ) ( )
4) Cited three
kinds frame material of Mini-pleated HEPA filter ( )
( ) ( )
5) There separator
materials of HEPA filter with Clapboard: ( ) ( )
6) Efficiency
bag filter another English Name:
